FR693495A
(en )
1930-11-20
Construction of molds for the production of concrete blocks
AT113203B
(en )
1929-05-10
Formwork for the production of the concrete support ribs of space-enclosing components formed by glass bodies
AT121440B
(en )
1931-02-25
Process for the production of durable plastering mortar for architectural purposes.
DK39311C
(en )
1928-10-01
Procedure for the production of cement concrete mixtures.
AT121544B
(en )
1931-02-25
Process for the manufacture of fire-resistant building material.
GR1374B
(en )
1926-12-30
METHOD FOR THE MANUFACTURE OF PERPOSE BUILDING MATERIALS.
DK33702C
(en )
1924-09-29
Casting for the manufacture of cement windows.
FR610047A
(en )
1926-08-28
Apparatus intended for the mass production of reinforced cement columns with moldings, capitals, bases
FR645598A
(en )
1928-10-27
Reinforced concrete supports for columns
DK43621C
(en )
1931-01-26
Procedure for the manufacture of cement roof tiles.
CH204170A
(en )
1939-04-30
Process for the production of reinforced concrete.
FI10487A
(en )
1925-01-09
Reinforced concrete brick
FR562981A
(en )
1923-11-23
Wooden mold for the construction of houses and other buildings from poured concrete
FR619160A
(en )
1927-03-28
Glass concrete tank without formwork
AT106712B
(en )
1927-06-25
Process for the production of porous building materials.
DK37659C
(en )
1927-07-04
Method of Making Cement.
FR613631A
(en )
1926-11-25
Reinforced cement base for wooden post
DK38075C
(en )
1927-10-24
Procedure for the production of cement.
CA260166A
(en )
1926-04-27
Method of moulding concrete structures
DK35588C
(en )
1926-02-08
Method and Casting for the Production of Aerated Concrete.
CH153088A
(en )
1932-02-29
Process for the preparation of 2-phenylindole-5-sulfonic acid.
FR666449A
(en )
1929-10-01
Cement mixer
CH138270A
(en )
1930-02-28
Process for the production of Portland cement from raw materials containing magnesia.
DK43804C
(en )
1931-03-09
Process for the Preparation of N-Substituted Benzimidazolonaric Acids.
FR621225A
(en )
1927-05-07
Concrete mixer